DE10065398C2 - Length-adjustable placeholder for insertion between two vertebral bodies - Google Patents

Length-adjustable placeholder for insertion between two vertebral bodies

Info

Publication number
DE10065398C2
DE10065398C2 DE2000165398 DE10065398A DE10065398C2 DE 10065398 C2 DE10065398 C2 DE 10065398C2 DE 2000165398 DE2000165398 DE 2000165398 DE 10065398 A DE10065398 A DE 10065398A DE 10065398 C2 DE10065398 C2 DE 10065398C2
Authority
DE
Germany
Prior art keywords
placeholder
length
insertion
vertebral bodies
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE2000165398
Other languages
German (de)
Other versions
DE10065398A1 (en
Inventor
Juergen Harms
Lutz Biedermann
Peter Ostermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIEDERMANN TECHNOLOGIES GMBH & CO. KG, DE
Original Assignee
Biedermann Motech GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biedermann Motech GmbH and Co KG filed Critical Biedermann Motech GmbH and Co KG
Priority to DE2000165398 priority Critical patent/DE10065398C2/en
Publication of DE10065398A1 publication Critical patent/DE10065398A1/en
Application granted granted Critical
Publication of DE10065398C2 publication Critical patent/DE10065398C2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/3011Cross-sections or two-dimensional shapes
    • A61F2002/30138Convex polygonal shapes
    • A61F2002/30151Convex polygonal shapes rhomboidal or parallelogram-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
    • A61F2002/3052Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts unrestrained in only one direction, e.g. moving unidirectionally
    • A61F2002/30522Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts unrestrained in only one direction, e.g. moving unidirectionally releasable, e.g. using a releasable ratchet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
    • A61F2002/30523Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts by means of meshing gear teeth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • A61F2002/30551Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length at different discrete positions, e.g. at equidistant intervals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30601Special structural features of bone or joint prostheses not otherwise provided for telescopic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30787Plurality of holes inclined obliquely with respect to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30841Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/4475Joints for the spine, e.g. vertebrae, spinal discs hollow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes

Description

Die Erfindung betrifft einen Platzhalter zum Einsetzen zwischen zwei Wirbelkörper. The invention relates to a spacer for insertion between two vertebral bodies.

Ein solcher Platzhalter ist aus der EP 0 977 528 A1 bekannt. Such a placeholder is known from EP 0977528 A1. Dieser bekannte Platzhalter ermöglicht eine Anpassung an die gewünschte Länge durch Relativverschiebung der beiden Teile zueinander. This known placeholder allows each other to adapt to the desired length by means of relative displacement of the two parts. Aus der DE 196 22 827 A1 ist ein Platzhalter bekannt mit einem hülsenartigen ersten Teil und einem in diesem geführten und in axialer Richtung relativ zum ersten Teil verschiebbaren zweiten Teil, welches ein Gewinde aufweist. From DE 196 22 827 A1 is known a placeholder with a sleeve-like first part and a part movable relative to the first guided in the latter and in the axial direction, the second part having a thread. Ferner ist ein Ring vorgesehen, der auf dem Gewinde verschraubbar ist, also mit dem zweiten Teil direkt verbunden ist und einen Anschlag für das erste Teil bildet. Furthermore, a ring is provided which can be screwed on the thread, is thus directly connected to the second part and forms a stop for the first part. Durch eine auf den Ring einwirkende Kraft, die den Ring dreht, werden die Teile in einer Richtung relativ zu einander bewegt, so daß eine Längenveränderung erfolgt. By acting on the ring force that rotates the ring, the parts are moved in one direction relative to one another so that a length change takes place. Aus der US 5 702 455 A ist ein Platzhalter bekannt mit einer ersten und einer zweiten Hülse. From US 5,702,455 A a placeholder is known having a first and a second sleeve. Ein drittes Element ist als ein Gewindezylinder ausgebildet, auf den die beiden Hülsen mit einem Innengewinde aufschraubbar sind. A third element is formed as a threaded cylinder, to which the two sleeves can be screwed with an internal thread. Die Gewinde der Hülsen sind einander entgegengesetzt ausgebildet. The threads of the sleeves are formed opposite to each other. Durch Drehen des das Außengewinde aufweisenden mittleren Elementes erfolgt eine längsgerichtete Verschiebung der beiden Hülsen zueinander. By rotating the external thread, the central element having a longitudinal displacement of the two sleeves is effected to each other.

Aufgabe der Erfindung ist es, einen Platzhalter der eingangs beschriebenen Art zu schaffen, der beim Operationsvorgang einfacher auf seine Länge einstellbar ist. Object of the invention is to provide a placeholder of the type described above which is simpler set the surgical procedure on its length.

Diese Aufgabe wird durch den in Patentanspruch 1 gekennzeichneten Platzhalter gelöst. This object is solved by the features characterized in Patent Claim 1 placeholder.

Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Further developments of the invention are characterized in the subclaims.

Weitere Ausgestaltungen und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispieles anhand der Figuren. Further embodiments and advantages of the invention will become apparent from the description of an embodiment with reference to FIGS. Von den Figuren zeigen: The figures show:

Fig. 1 eine Seitenansicht des Platzhalters; Fig. 1 is a side view of the spacer;

Fig. 2 einen Schnitt entlang der Linie AA; 2 shows a section along the line AA.

Fig. 3 ein Detail aus Fig. 2; Fig. 3 is a detail of Fig. 2;

Fig. 4 die Seitenansicht wie in Fig. 1 in einem expandierten Zustand; Figure 4 is a side view as in Figure 1 in an expanded state..; und and

Fig. 5 eine Draufsicht auf die in Fig. 4 gezeigte Vorrichtung. Fig. 5 is a plan view of that shown in Fig. 4 apparatus.

Wie am besten aus den Fig. 1 und 2 ersichtlich ist, weist die äußere Hülse 1 einen ersten Mantelabschnitt 3 auf, der sich von dem ersten freien Ende 4 bis über die Hälfte der Hülse zu ihrem anderen Ende hin erstreckt. As best seen in FIGS. 1 and 2, the outer sleeve 1 has a first shell portion 3 which extends from the first free end 4 to about the half of the sleeve to its other end. Dieser Mantelabschnitt weist einen ersten Innendurchmesser auf. This skirt portion has a first inner diameter. In dem daran anschließenden zweiten Mantelabschnitt 5 ist der Mantel auf der Innenseite dünner ausgearbeitet und weist einen zweiten Innendurchmesser auf, der größer ist als der erste Innendurchmesser. In the subsequent second casing section 5 of the casing on the inside is drawn thinner and has a second inner diameter which is larger than the first inner diameter. Der erste Mantelabschnitt weist eine Mehrzahl von über den gesamten Mantelabschnitt verteilten Ausnehmungen 8 in Form von sich durch den Mantel erstreckenden Bohrungen auf. The first shell portion has a plurality of distributed over the entire shell portion in the form of recesses 8 extending through the shell holes. Der zweite Mantelabschnitt 5 weist in der aus Fig. 1 ersichtlichen Weise sich mit ihrer Längsdiagonale parallel zur Mantelachse 9 erstreckende rautenförmige Ausnehmungen 10 , 11 auf. The second shell portion 5 has on with their longitudinal diagonal parallel to the shell axis 9 extending diamond-shaped recesses 10, 11 in the manner shown in Fig. 1 manner. an den Rand angrenzend erstreckt sich in Umfangsrichtung eine erste Gruppe dieser rautenförmigen Ausnehmungen 10 , und daran anschließend zum ersten freien Ende 4 hin gerichtet eine zweite Gruppe 11 , wobei die zweite Gruppe zur ersten Gruppe um eine halbe Rautenhöhe in axialer Richtung versetzt ist. adjacent to the edge extends in the circumferential direction, a first group of these diamond-shaped recesses 10, and thereafter directed to the first free end 4, a second group 11, wherein the second group to the first group is offset by half a rhombus height in the axial direction. Dadurch wird ein Netz von sich unter einem spitzen Winkel schneidenden Bandstreifen 12 , 13 gebildet, die unter jeweils gleichgroßen Winkeln gegen die Längsdiagonale der Rauten geneigt sind. Characterized a network of intersecting at an acute angle tape strips 12, 13 is formed, which are inclined at equal angles to each of the longitudinal diagonal of the rhombuses. Die Größe der Rauten und der diese begrenzenden Bandstreifen ist so gewählt, daß die Anzahl von Rauten in Umfangsrichtung stets ganzahlig ist. The size of the diamonds and this limiting tape strip is chosen so that the number of diamonds in the circumferential direction is always ganzahlig. Der so gebildete Rand weist damit von dem Bandstreifen gebildete Zacken und dazwischen Vertiefungen 22 auf. So that the edge thus formed has formed by the tape tab prongs and recesses therebetween 22nd Das hülsenförmige zweite Teil 2 weist einen an sein erstes freies Ende 14 anschließenden Mantelabschnitt 15 mit einem ersten Außendurchmesser auf. The sleeve-shaped second part 2 has a adjacent to its first free end 14 of sheath portion 15 having a first outer diameter. Dieser Mantelabschnitt erstreckt sich in dem gezeigten Ausführungsbeispiel über etwas mehr als zwei Drittel der axialen Länge. This shell portion extends in the embodiment shown, slightly more than two thirds of the axial length. Daran schließt sich ein bis zum zweiten freien Ende sich erstreckender zweiter Mantelabschnitt 16 mit dem gleichen Außendurchmesser an. Thereto extending second shell portion 16 includes a up to the second free end having the same outer diameter at. Der Außendurchmesser ist so gewählt, daß die innere Hülse 2 gleitend in dem ersten Mantelabschnitt 3 der äußeren Hülse 1 geführt wird. The outer diameter is chosen so that the inner sleeve 2 is guided slidably in the first cladding portion 3 of the outer sleeve. 1 An dem ersten freien Ende 14 weist die innere Hülse einen Rand 17 auf, dessen Durchmesser größer ist als der Durchmesser des ersten Mantelabschnittes und größer als der erste Innendurchmesser der äußeren Hülse und kleiner ist, als der Innendurchmesser des zweiten Mantelabschnittes 5 der äußeren Hülse. At the first free end 14, the inner sleeve has a rim 17 whose diameter is larger than the diameter of the first skirt portion and is larger than the first inner diameter of the outer sleeve and smaller than the inner diameter of the second sheath portion 5 of the outer sleeve.

Der erste Mantelabschnitt 15 weist in einer Richtung parallel zur Mantelachse 9 eine Mehrzahl von unmittelbar aneinandergrenzenden kugelsegmentförmigen Vertiefungen 18 auf, deren Tiefe kleiner als ihr Radius ist. The first shell portion 15 has in a direction parallel to the lateral axis 9, a plurality of immediately adjacent spherical segment-shaped recesses 18, the depth of which is smaller than its radius. Der Abstand jeweils zweier benachbarter Vertiefungen ist kleiner als der Durchmesser des die Vertiefung begrenzenden Randes der kugelsegmentförmigen Vertiefungen. The distance of two adjacent depressions is smaller than the diameter of the recess limiting edge of the spherical segment-shaped recesses. Dadurch wird erreicht, daß die Grenze 19 zwischen zwei benachbarten Vertiefungen niedriger ist als der eigentliche Rand der Vertiefungen selbst. Der Bereich der Vertiefungen 18 erstreckt sich über nahezu die gesamte Länge des ersten Mantelabschnittes 15 . Thereby, the area of the depressions is achieved that the boundary 19 between two adjacent depressions is lower than the actual edge of the wells themselves. 18 extends over almost the entire length of the first jacket portion 15. In diesem ersten Mantelabschnitt sind analog zu den Ausnehmungen 8 ebenfalls sich über die ganze Fläche des Mantelabschnittes erstreckende als durch den Mantel hindurchgehende Bohrungen gebildete Ausnehmungen 21 angeordnet. In this first shell portion which extends over the whole surface of the skirt portion as through the shell-holes formed recesses 21 are arranged similarly to the recesses 8 also. Der zweite Mantelabschnitt 16 ist in analoger Weise zum zweiten Mantelabschnitt 5 der ersten Hülse ausgebildet und weist in gleicher Weise angeordnete rautenförmige Ausnehmungen 10 , 11 auf, mit den Bändern 12 , 13 dazwischen. The second shell portion 16 is formed in an analogous manner to the second shell section 5 of the first sleeve and has in the same way arranged diamond-shaped recesses 10, 11, with the belts 12, 13 therebetween. Die Bänder sind am freien Ende der Hülse schräg zueinander verlaufend ausgebildet und schließen jeweils Vertiefungen 22 mit dazwischen hervorstehenden relativ scharfen Kanten ein. The bands are formed to extend obliquely to each other at the free end of the sleeve and each include recesses 22 therebetween protruding relatively sharp edges a.

Wie am besten aus den Fig. 2 und 4 ersichtlich ist, weist die Wandung des inneren zweiten Teiles 2 ein sich parallel zur Längsachse 9 erstreckendes Zahnprofil 22 auf, welches in der Wandung so geformt ist, daß sich eine Reihe von Zähnen wie bei einer Zahnstange ergibt. As best seen from FIGS. 2 and 4, the wall of the inner second part 2 a extending parallel to the longitudinal axis 9 tooth profile 22 which is shaped in the wall so that a row of teeth, as in a rack results. Gleichzeitig weist die äußere Hülse 1 in dem ersten Mantelabschnitt 3 eine Bohrung 23 auf, die als Drehlager dient. At the same time, the outer sleeve 1 in the first cladding section 3 has a bore 23 which serves as a pivot bearing. Ferner ist ein Zahnrad 24 vorgesehen, welches auf seiner einen Seite eine Welle 25 aufweist. Further, a gear 24 is provided which has on its one side a shaft 25th Die Welle 25 ist so bemessen, daß sie in der Bohrung 23 gleitend gelagert ist. The shaft 25 is dimensioned such that it is slidably mounted in the bore 23rd Die Bohrung 23 ist in Umfangsrichtung so angeordnet, daß das darin gelagerte Zahnrad 24 mit dem Zahnprofil 22 in der in den Fig. 1 und 4 am besten ersichtlich Weise in Eingriff ist. The bore 23 is arranged in the circumferential direction so that the gear 24 mounted therein is seen manner with the toothed profile 22 in the in FIGS. 1 and 4 best in engagement.

Wie am besten aus den Fig. 1 und 4 ersichtlich ist, ist der Radius des Zahnrades 24 so gewählt, daß der Mittelpunkt des in der Bohrung 23 gelagerten Zahnrades bei Eingriff mit dem Zahnprofil 22 gerade auf der Mittellinie der Vertiefungen 18 liegt. As best seen from FIGS. 1 and 4, the radius of the gear wheel 24 is chosen so that the center of the bearing in the bore 23 straight gear is engaged with the tooth profile 22 on the center line of the recesses 18.

Wie am besten aus den Fig. 1 und 4 ersichtlich ist, ist die Bohrung 23 in der Nähe des ersten freien Endes 4 der äußere Hülse 1 angebracht, wobei jedoch der Abstand von dem freien Ende wenigstens gleich dem Durchmesser des Zahnrades ist. As best seen in FIGS. 1 and 4 can be seen, the bore is attached to the outer sleeve 1 in the vicinity of the first free end 4, 23, but wherein the distance of the free end is at least equal to the diameter of the gear. In einem Abstand von der Bohrung 23 und, wie am besten aus Fig. 1 ersichtlich ist auf einer parallel zur Mantelachse 9 liegenden Linie mit dem Mittelpunkt der Bohrung 23 liegend weist die äußere Hülse 1 eine Gewindebohrung 26 auf. At a distance from the bore 23 and, as best seen in Fig. 1 is seen on a plane parallel to the shell axis 9 aligned with the center of the bore 23 lying, the outer sleeve 1 has a threaded bore 26. Ferner ist eine Fixierschraube 27 vorgesehen, die in Fig. 1 unten in Draufsicht und oben in Seitenansicht gezeigt ist. Further, a fixing screw 27 is provided, shown in Fig. 1 below in plan view and in top side view. Die Fixierschraube weist ein Außengewinde auf, welches dem Innengewinde der Bohrung 26 entspricht. The locking screw has an external thread, which corresponds to the internal thread of the bore 26th Auf der Stirnseite der Fixierschraube ist ein Kugelsegment 28 vorgesehen. On the front side of the fixing screw, a ball segment 28 is provided. Die Abmessungen des Kugelsegmentes entsprechen der größeren Tiefe der Vertiefungen 18 . The dimensions of the spherical segment corresponding to the larger depth of the recesses 18th

Wie aus Fig. 2 ersichtlich ist, weist die Welle 25 des Zahnrades 24 an ihrem freien Ende eine Öffnung 29 auf, die so geformt ist, daß ein entsprechend angepaßtes Drehinstrument oder Schraubinstrument eingreifen kann. As is apparent from Fig. 2, the shaft 25 of the gear 24 at its free end an opening 29 which is shaped so that a correspondingly adapted pivot instrument or screwing instrument can engage. Es ist ferner eine Art Schraubendreher 30 vorgesehen, der an seiner Frontfläche einen der Form der Öffnung 29 entsprechenden Ansatz 31 aufweist. It is also a kind of screw driver 30 is provided which has on its front face one of the shape of the opening 29 corresponding approach the 31st

Im Betrieb wird der Platzhalter zunächst in der in Fig. 2 gezeigten zusammengeschobenen Weise zwischen zwei benachbarte Wirbelkörper eingesetzt. In operation, the placeholder is first inserted into the position shown in Fig. 2 collapsed manner between two adjacent vertebral bodies. Anschließend erfolgt durch Eingreifen des Schraubendrehers 30 mit seinem Ansatz in die Öffnung 29 und Drehen ein Expandieren des Platzhalters auf eine gewünschte Länge. Subsequently, by engagement of the screwdriver 30 with its insertion into the opening 29 and rotating an expansion of the blank to a desired length. Nach Erreichen der Länge wird die Fixierschraube 27 , die möglicherweise schon vorher in die Gewindebohrung 26 locker eingesetzt ist, festgezogen, so daß eine stabile Verbindung zwischen den beiden Hülsenteilen 1 und 2 hergestellt ist. After reaching the length of the fixing screw 27, which is used may already loosely screwed into the threaded bore 26 is tightened, so that a stable connection between the two sleeve parts is made 1 and 2. FIG.

Wie in Fig. 4 angedeutet ist, kann durch die spezielle Ausbildung der Abschnitte 5 und 16 der Hülsen durch Abschneiden der Ränder eine Änderung der Neigung der an die Wirbel angreifenden Flächen herbeigeführt werden. As indicated in Fig. 4, 5 and 16 of the sleeves can be brought about by cutting off the edges of a change in the slope of the engaging surfaces of the vertebrae by the special design of the sections.

Claims (4)

1. Platzhalter zum Einsetzen zwischen zwei Wirbelkörper, mit einem hülsenartigen ersten Teil ( 1 ) und einem in diesem geführten und in axialer Richtung relativ zum ersten Teil verschiebbaren zweiten Teil ( 2 ), die beide ( 1 , 2 ) durch eine Einrichtung miteinander verbunden sind, die eine von außen angreifende Drehbewegung in eine die Teile ( 1 , 2 ) in ihrer relativen Längsstellung verschiebende Bewegung umwandelt, wobei eines der Teile ein sich parallel zur Längsachse der Teile erstreckendes Zahnprofil ( 22 ) und das andere der Teile ein mit dem Zahnprofil ( 22 ) in Eingriff befindliches Zahnrad ( 24 ) zum Einstellen einer Gesamtlänge aufweisen. 1. placeholder for insertion between two vertebral bodies, with a sleeve-like first part (1) and a first part is displaceable relative guided in the latter and in the axial direction the second part (2), both (1, 2) are interconnected by means that an attacking from the outside rotary motion to the parts (1, 2) into their relative longitudinal position of sliding movement, wherein one of the parts a in parallel to the longitudinal axis of the parts extending tooth profile (22) and the other of the parts of a (with the tooth profile comprise 22) befindliches in engagement gear (24) for adjusting an overall length.
2. Platzhalter nach Anspruch 1, gekennzeichnet durch ein mit dem Zahnrad ( 24 ) in Eingriff bringbares Drehinstrument ( 30 ) zum Verändern der Zahnradstellung und damit der Gesamtlänge. 2. Spacer according to claim 1, characterized by the gear (24) engageable rotary tool (30) for changing the gear position and thus the overall length.
3. Platzhalter nach Anspruch 2, dadurch gekennzeichnet, daß das Zahnrad ( 24 ) in dem ersten Teil gelagert ist. 3. A stent according to claim 2, characterized in that the gear (24) is mounted in the first part.
4. Platzhalter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das zweite Teil ( 2 ) auf seiner dem ersten Teil ( 1 ) zugewandten Außenwand einen sich in axialer Richtung erstreckenden Abschnitt ( 18 ) mit einer Rasterung aus einer Mehrzahl von in axialer Richtung benachbart zueinander angeordneten Vertiefungen aufweist und ein mit dieser Rasterung zusammenwirkendes Arretierteil ( 27 ) vorgesehen ist. 4. A stent according to any one of claims 1 to 3, characterized in that the second part (2) on its side facing the first part (1) facing outer wall of a passage extending in the axial direction section (18) having a grid of a plurality of axially having direction adjacently arranged recesses and a co-operating with this screening stop part (27) is provided.
DE2000165398 2000-12-27 2000-12-27 Length-adjustable placeholder for insertion between two vertebral bodies Active DE10065398C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000165398 DE10065398C2 (en) 2000-12-27 2000-12-27 Length-adjustable placeholder for insertion between two vertebral bodies

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2000165398 DE10065398C2 (en) 2000-12-27 2000-12-27 Length-adjustable placeholder for insertion between two vertebral bodies
CH22902001A CH695440A5 (en) 2000-12-27 2001-12-14 Length adjustable placeholder for insertion between two vertebrae.
US10/034,545 US6902579B2 (en) 2000-12-27 2001-12-21 Lengthwise adjustable space-maintainer for inserting between two vertebral bodies

Publications (2)

Publication Number Publication Date
DE10065398A1 DE10065398A1 (en) 2002-07-18
DE10065398C2 true DE10065398C2 (en) 2002-11-14

Family

ID=7669246

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000165398 Active DE10065398C2 (en) 2000-12-27 2000-12-27 Length-adjustable placeholder for insertion between two vertebral bodies

Country Status (3)

Country Link
US (1) US6902579B2 (en)
CH (1) CH695440A5 (en)
DE (1) DE10065398C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021861A1 (en) * 2004-05-04 2005-11-24 Biedermann Motech Gmbh Implant for temporary or permanent replacement of vertebra or intervertebral disk, comprising solid central element and outer elements with openings

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7588573B2 (en) * 2002-09-23 2009-09-15 Warsaw Orthopedic, Inc. Expansion tool for adjustable spinal implant
WO2004052245A1 (en) * 2002-12-06 2004-06-24 Synthes Ag Chur Intervertebral implant
FR2850563B1 (en) * 2003-02-05 2005-11-04 Scient X vertebral replacement implant and entertainment device for the implementation of the implant
WO2004084742A1 (en) * 2003-03-24 2004-10-07 Theken Surgical Llc Spinal implant adjustment device
US7604654B2 (en) * 2005-02-22 2009-10-20 Stryker Spine Apparatus and method for dynamic vertebral stabilization
US8236058B2 (en) * 2005-09-27 2012-08-07 Fabian Henry F Spine surgery method and implant
US9271843B2 (en) 2005-09-27 2016-03-01 Henry F. Fabian Spine surgery method and implant
DE102005061932A1 (en) 2005-12-23 2007-07-05 Biedermann Motech Gmbh Placeholder for implantation to the human vertebrae has three tubular bodies having different lengths and diameters that are inserted and connected to each other by pins so that they project over the edges of the next larger tubular body
US7794501B2 (en) * 2006-04-27 2010-09-14 Wasaw Orthopedic, Inc. Expandable intervertebral spacers and methods of use
US7708779B2 (en) * 2006-05-01 2010-05-04 Warsaw Orthopedic, Inc. Expandable intervertebral spacers and methods of use
FR2902315B1 (en) * 2006-06-20 2008-09-12 Abbott Spine Sa Intervertebral implant distractable
EP1878408B1 (en) * 2006-07-14 2012-09-12 Biedermann Technologies GmbH & Co. KG A spacer for insertion between two vertebrae
WO2008033457A2 (en) * 2006-09-14 2008-03-20 The University Of Toledo Variable height vertebral body replacement implant
US8132426B2 (en) * 2007-01-29 2012-03-13 Guardian Industries Corp. Method of making heat treated coated article using diamond-like carbon (DLC) coating and protective film
JP2010521242A (en) 2007-03-13 2010-06-24 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング Adjustable intervertebral implant
US20090005816A1 (en) * 2007-06-26 2009-01-01 Denardo Andrew J Spinal rod, insertion device, and method of using
US20090088833A1 (en) * 2007-09-28 2009-04-02 Maximiliano Soetermans Double wall stent with retrieval member
US8182537B2 (en) * 2007-10-30 2012-05-22 Aesculap Implant Systems, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
US8591587B2 (en) 2007-10-30 2013-11-26 Aesculap Implant Systems, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
US20090112325A1 (en) * 2007-10-30 2009-04-30 Biospine, Llc Footplate member and a method for use in a vertebral body replacement device
US8241294B2 (en) * 2007-12-19 2012-08-14 Depuy Spine, Inc. Instruments for expandable corpectomy spinal fusion cage
US8241363B2 (en) 2007-12-19 2012-08-14 Depuy Spine, Inc. Expandable corpectomy spinal fusion cage
US8267939B2 (en) 2008-02-28 2012-09-18 Stryker Spine Tool for implanting expandable intervertebral implant
CA2717635C (en) 2008-03-07 2015-12-29 Synthes Usa, Llc Expandable interbody spacer device
US20090270873A1 (en) 2008-04-24 2009-10-29 Fabian Henry F Spine surgery method and inserter
US8142441B2 (en) * 2008-10-16 2012-03-27 Aesculap Implant Systems, Llc Surgical instrument and method of use for inserting an implant between two bones
US8721723B2 (en) 2009-01-12 2014-05-13 Globus Medical, Inc. Expandable vertebral prosthesis
US8252054B2 (en) * 2009-01-14 2012-08-28 Stout Medical Group, L.P. Expandable support device and method of use
US8142435B2 (en) * 2009-02-19 2012-03-27 Aesculap Implant Systems, Llc Multi-functional surgical instrument and method of use for inserting an implant between two bones
US9687357B2 (en) 2009-03-12 2017-06-27 Nuvasive, Inc. Vertebral body replacement
US9387090B2 (en) 2009-03-12 2016-07-12 Nuvasive, Inc. Vertebral body replacement
US8876905B2 (en) * 2009-04-29 2014-11-04 DePuy Synthes Products, LLC Minimally invasive corpectomy cage and instrument
US8211178B2 (en) 2009-06-18 2012-07-03 Warsaw Orthopedic Intervertebral implant with a pivoting end cap
AU2010318711B2 (en) 2009-11-11 2014-05-15 Nuvasive, Inc. Surgical access system and related methods
US9579211B2 (en) 2010-04-12 2017-02-28 Globus Medical, Inc. Expandable vertebral implant
US8591585B2 (en) 2010-04-12 2013-11-26 Globus Medical, Inc. Expandable vertebral implant
DE102010018379B4 (en) * 2010-04-26 2018-10-18 Peter Metz-Stavenhagen Spinal implant and instrument for this purpose
US8377140B2 (en) 2011-01-12 2013-02-19 Ebi, Llc Expandable spinal implant device
US8740980B2 (en) 2011-01-27 2014-06-03 Warsaw Orthopedic, Inc. Expandable medical implant
DE102011018692B4 (en) * 2011-04-26 2016-06-23 Peter Metz-Stavenhagen Spinal implant tool therefor, and method for the distraction of the spinal implant
JP6047571B2 (en) 2011-08-16 2016-12-21 ストライカー・スピン Expandable graft
US9572678B2 (en) 2012-02-07 2017-02-21 Medivest, Llc Tissue spacer implants, insertion and adjustment tools, and method of use
ES2544274T3 (en) * 2012-10-24 2015-08-28 Waldemar Link Gmbh & Co. Kg Support for a medical implant
US10342675B2 (en) 2013-03-11 2019-07-09 Stryker European Holdings I, Llc Expandable implant
US9566167B2 (en) 2013-08-22 2017-02-14 K2M, Inc. Expandable spinal implant
US9211193B2 (en) 2013-08-30 2015-12-15 Aesculap Implant Systems, Llc Prosthesis, system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9101603U1 (en) * 1991-02-12 1991-05-02 Eska Medical Luebeck Medizintechnik Gmbh & Co, 2400 Luebeck, De
DE19622827A1 (en) * 1996-06-07 1997-12-11 Ulrich Heinrich Implant for insertion between vertebral bodies as a placeholder
US5702455A (en) * 1996-07-03 1997-12-30 Saggar; Rahul Expandable prosthesis for spinal fusion

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000300A1 (en) * 1977-11-17 1979-05-31 Colpo Ltd Drilling needle for medical treatment of root canals
US5002546A (en) * 1987-04-13 1991-03-26 Romano Jack W Curved bore drilling apparatus
DK166600B1 (en) * 1991-01-17 1993-06-21 Therkel Bisgaard Tool kit for use in suturing in deep surgical apertures or body cavities
DE19519101B4 (en) * 1995-05-24 2009-04-23 Lutz Biedermann Height adjustable artificial vertebral body
DE29616778U1 (en) * 1996-09-26 1998-01-29 Howmedica Gmbh Vertebral body spacer
US5916267A (en) * 1997-04-07 1999-06-29 Arthit Sitiso Anterior spinal implant system for vertebral body prosthesis
JP3955883B2 (en) * 1997-04-15 2007-08-08 ジンテーズ ゲゼルシャフト ミト ベシュレンクテル ハフツング Telescopic vertebral body prosthesis
EP0904751B1 (en) * 1997-09-30 2003-08-20 Centerpulse Orthopedics Ltd. Tubular support body for bridging two vertebrae
DE19804765C2 (en) * 1998-02-06 2000-09-28 Biedermann Motech Gmbh Placeholder with adjustable axial length
JP4087568B2 (en) * 1998-10-15 2008-05-21 ジンテーズ ゲゼルシャフト ミト ベシュレンクテル ハフツング Spine prosthesis of telescoping

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9101603U1 (en) * 1991-02-12 1991-05-02 Eska Medical Luebeck Medizintechnik Gmbh & Co, 2400 Luebeck, De
DE19622827A1 (en) * 1996-06-07 1997-12-11 Ulrich Heinrich Implant for insertion between vertebral bodies as a placeholder
US5702455A (en) * 1996-07-03 1997-12-30 Saggar; Rahul Expandable prosthesis for spinal fusion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021861A1 (en) * 2004-05-04 2005-11-24 Biedermann Motech Gmbh Implant for temporary or permanent replacement of vertebra or intervertebral disk, comprising solid central element and outer elements with openings

Also Published As

Publication number Publication date
US6902579B2 (en) 2005-06-07
US20020082696A1 (en) 2002-06-27
CH695440A5 (en) 2006-05-31
DE10065398A1 (en) 2002-07-18

Similar Documents

Publication Publication Date Title
EP0537598B1 (en) Compressive margical implant
EP1323391B1 (en) Locking device for securing a rod in a holder, especially of a polyaxial bone screw
EP1501453B1 (en) Height-adjustable implant to be inserted between vertebral bodies and corresponding handling tool
DE10310540B3 (en) Anchoring element for bone or spinal column surgery has threaded shaft and cylindrical reception part for coupling with rod having U-shaped seating with screw threads at ends of its arms
DE4341140C2 (en) Ratchet wrench assembly for driving a fastener
DE19607517C1 (en) Bone screw for osteosynthesis
EP0699057B1 (en) Stabilising arrangement, in particular for stabilising the spinal column
EP0243298B1 (en) Construction kit for a stem prosthesis
EP1219266B1 (en) Implant for the insertion between the vertebraes and operation tool for using the implant
EP1627608B1 (en) Clamp element and joint element
DE69918848T2 (en) Front plate for lumbar and positioning tool for
DE19509317B4 (en) Implant for insertion between vertebral bodies of the spinal column as a place holder
EP0340159B1 (en) Dowel pin for cementless bone implants
EP1219256B1 (en) Fixing element
DE60015636T2 (en) Compression bone screw and support tools for fixing
EP0870118B1 (en) Distance screw
EP0452442B1 (en) Bone screw
EP0308619B1 (en) Expansion dowel
DE69729467T2 (en) Cold forming tap with the inner diameter finishing use and its preparation method
DE69813807T2 (en) Implant as a spacer between vertebral bodies
DE69923962T2 (en) Bone implant with a reversible attachment device
EP1316295B1 (en) Element with a shaft and a retaining element connected to the shaft for attaching a rod
EP0394719B1 (en) Thread-forming screw
EP0267148B1 (en) Expansion dowel with two different expanding tapers
EP0693274B1 (en) Implant for maintaining the normal spacing between two vertebrae

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
R082 Change of representative

Representative=s name: PRUEFER & PARTNER GBR, DE

R081 Change of applicant/patentee

Owner name: BIEDERMANN TECHNOLOGIES GMBH & CO. KG, DE

Free format text: FORMER OWNER: BIEDERMANN MOTECH GMBH, 78054 VILLINGEN-SCHWENNINGEN, DE

Effective date: 20121128

R082 Change of representative

Representative=s name: PRUEFER & PARTNER GBR, DE

Effective date: 20121128

Representative=s name: PRUEFER & PARTNER MBB PATENTANWAELTE RECHTSANW, DE

Effective date: 20121128